Historical Fire Extent and Severity Mapping (FESM) - Northern Forests Region

Fire severity is a metric of the loss of biomass caused by fire. In collaboration with the NSW Rural Fire Service, DPE Remote Sensing & Regulatory Mapping team has developed a semi-automated approach to mapping fire extent and severity through a machine learning framework based on satellite imagery. \r\n\r\nThe method uses standardised classes to allow comparison of different fires across the landscape. The FESM severity classes include: unburnt, low severity (burnt understory, unburnt canopy), moderate severity (partial canopy scorch), high severity (complete canopy scorch, partial canopy consumption), extreme (full canopy consumption). \r\n\r\nHere we provide historical severity mapping for the Northern Forests region from 1989/90 to 2015/16, which is based on Landsat satellite imagery. From 2016/17 to the current fire year, this region is covered in the statewide FESM data, which is based on Sentinel 2 satellite imagery.火灾严重性是衡量火灾造成生物质损失程度的指标。本数据集由DPE遥感与监管制图团队与新南威尔士州农村消防局（NSW Rural Fire Service）合作开发，通过基于卫星影像的机器学习框架，实现了火灾范围与严重性的半自动化制图。 该方法采用标准化分级体系，以便对不同区域的各类火灾进行横向对比。火灾范围与严重性制图（Fire Extent and Severity Mapping, FESM）的严重性分级包含以下类别：未燃烧、低严重性（林下植被被烧毁，林冠层未受影响）、中严重性（林冠部分灼焦）、高严重性（林冠完全灼焦，部分林冠组织被焚毁）、极端严重性（林冠完全焚毁）。 本数据集提供了1989/90年度至2015/16年度北部森林区域的历史火灾严重性制图数据，该部分数据基于陆地卫星（Landsat）影像生成。自2016/17年度至今，该区域的火灾数据采用全州范围的FESM数据集，其基于哨兵2号（Sentinel 2）卫星影像生成。